Cannot build dune-common without python3-venv

During a new installation of dune-common I get

-- Found Python3: /usr/bin/python3 (found version "3.9.9") found components: Interpreter Development Development.Module Development.Embed 
-- Found pip_/usr/bin/python3: TRUE  
-- Failed to find the python package virtualenv with interpreter /usr/bin/python3. (missing: DUNE_PYTHON_virtualenv_FOUND) 
-- Found venv_/usr/bin/python3: TRUE  
-- Building a virtualenv in /home/sander/dune/dune-common/build-cmake/dune-env
-- WARNING: Failed to build a virtual env with pip installed, trying again without pip
-- If you are using Debian or Ubuntu, consider installing python3-venv and / or python-virtualenv
-- Failed to find the python package pip with interpreter /home/sander/dune/dune-common/build-cmake/dune-env/bin/python. (missing: pippresent) 
CMake Error at cmake/modules/DunePythonVirtualenv.cmake:241 (message):
  dune-common set up a virtualenv, but needs pip to be installed into it.

                           You can either install it yourself manually activating the virtualenv with
                           the activate script in your build directory /home/sander/dune/dune-common/build-cmake or you set
                           the CMake variable DUNE_PYTHON_ALLOW_GET_PIP to allow Dune to use get-pip.py
                           from https://bootstrap.pypa.io/get-pip.py
Call Stack (most recent call first):
  cmake/modules/DunePythonCommonMacros.cmake:118 (include)
  cmake/modules/DuneCommonMacros.cmake:51 (include)
  cmake/modules/DuneModuleDependencies.cmake:109 (include)
  cmake/modules/DuneProject.cmake:120 (dune_process_dependency_macros)
  CMakeLists.txt:11 (dune_project)


-- Configuring incomplete, errors occurred!

Installing the Debian package python3-venv does indeed seem to solve the issue, but it is still inconvenient: As I don't plan on using Python features in the nearer future I don't expect to be bothered by Python problems.